556 REPORT OF COMMISSIONER OF FISH AND FISHERIES. 
Plate V. 
Fig. 25. Diagrammatic sketcli showing general plan of scolex and pseudoscolex of 
small specimen in section ; V , lateral branch of aquiferous vessel ; l 11 , 
plexus of aquiferous vessels; aa , sections of superficial folds of pseudo- 
scolex; other letters as previously explained. 
Fig. 26. Transverse section of posterior segment in which the sexual organs are 
mature, on level with posterior of genital cloaca; I./., lateral furrow ; p, 
invaginated base of cirrus; p', cirrus bulb with sections of coils of cir- 
rus; other letters as previously explained; X about 36. 
Fig. 27. Details of same in region of uterus and lateral fold; c inner, c' outer layer 
of epidermis; c ", cutis; u, uterus containing ova; other letters as pre- 
viously explained ; X 225. 
Fig. 28. Details of fig. 26: Cirrus pouch; e, wall of cirrus pouch; a to d, different, 
layers of invaginated cirrus; m. y longitudinal muscles, X 225. 
Fig. 2D. Transverse section of posterior segment with mature sexual organs, slightly 
more advauced than the one represented in fig. 30. Section made an- 
terior to genital cloaca, X 45. 
Figs. 26, 27, aud 28, Perenyi’s fluid preparation, Beale’s carmine stain. 
Fig. 29, Perenyi’s fluid, Burner’s haematoxylon stain. 
Plate VI. 
Fig. 30. Transverse section of posterior mature segment, near anterior end of seg- 
ment, at extreme anterior end of uterus ; s, portion of voluminous folds of 
vas deferens ; other letters as in figs. 26, 29 ; X 45. 
Fig. 31. Details of fig. 30; u, nuclear aggregation, first indication of the uterus; 
s, portion of folds of vas deferens with spermatozoa; a, epethelial glands, 
X 225. 
Fig. 32. Longitudinal lateral section of small specimen, near anterior end through 
aquiferous aud nerve vessels, X about 225. 
Fig. 33. Superficial view of segments near posterior end. The apparent enlarge- 
ment posteriorly is accidental, and would not appear in a longer portion of 
the strobile. As a rule the maturing segments become narrower ; a, a, seg- 
ments shaded to show characteristic roughened epidermis. From a stained 
alcoholic specimen. 
Fig. 34. Longitudinal lateral section through genital cloaca, X 60. 
Fig. 35. Longitudinal marginal section, posterior but not mature segment, X 260. 
Figs. 30, 31, and 32, Picro-sulphuric, Beale’s carmine. 
Figs. 34 and 35, Pereuyi’s fluid, Burner's Luematoxylon. 
Plate VII. 
Fig. 38. From transverse section of posterior segment with mature genital organs ; 
posterior end of segment; germ gland, shell gland, etc.; X 112. 
Fig. 37. Details of fig. 36, X 22 r . 
Fig. 38. Transverse section of oviduct near the shell gland, from longitudinal sec- 
tion of posterior segment, X 475. 
Fig. 39. Testicular body, with sperm cells, a, and spermatozoa, &, X 475. 
Fig. 40. Partly diagrammatic sketch of segment near posterior end of strobile, x 30 
Fig. 41. Partly diagrammatic sketch showing female genitalia in mature segment, 
X 30. 
Fig. 42. Longitudinal section of invaginated cirrus, near base; the upper part of 
the figure is the marginal end; a, spines, X 225. 
Fig. 43. Longitudinal section of vagina near genital cloaca; a, rugae on wall of 
lumen, X 225. 
Figs. 36, 37, 38, 39, aud 41, Pereuyi’s fluid, Bomer’s haematoxylon. 
Figs. 40,42, aud 43, corrosive sublimate, borax-carmine preparations. 
